Question

In what time will a sum of money at 18% per annum simple interest double itself.​

Answer 1

Answer:

Time = 5 + 5/9 yrs = 5.56 yrs.

Step-by-step explanation:

Assume P = ₹ 100.

R = 18 %

T = ?

A = 2 × ₹100 = ₹ 200

SI = A - P = 200 - 100 = ₹ 100

$t = \frac{si \times 100}{p \times r} = \frac{100 \times 100}{100 \times 18} = \frac{100}{18} = \frac{50}{9} \\ = 5 \frac{5}{9}$